问题
选择题
.________ by the advances in technology, many farmers have set up wind farms on their land.
A．Being encouraged
B．Encouraging
C．Encouraged
D．Having encouraged
答案
C。
根据句意和空格后的介词by短语可知，空格处应填一个表被动意义的选项，故可排除B和D；而选项A为现在分词的被动式，除表示被动外还表示动作在进行，与句意不符，故也排除。